LYCOS RETRIEVER 
O Ring: Seals
built 235 days ago
The joint may be static, or (in some designs) have relative motion between the parts and the o-ring; rotating pump shafts and hydraulic cylinders, for example. Joints with motion usually require lubrication of the o-ring to reduce wear. This is typically accomplished with the fluid being sealed.
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The Onyx Isolator Ring is vacuum-filled at the factory with high-viscosity silicone-fluid; then permanently sealed with Onyx's Revolutionary "Module-Seal". The Onyx Isolator Ring can be used in a variety of industries such as chemical, food & beverage, mining, pulp & paper and waste water treatment.
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There are ... o-rings with a square profile, commonly called square-cut. When o-rings were selling at a premium because of the novelty, lack of efficient manufacturing processes and high labor content, square-cuts were introduced as an economical substitution for o-rings. The square-cut is manufactured by molding an elastomer sleeve which is then lathe cut. This style of seal was less expensive to manufacture with certain materials and molding technologies (compression, transfer, injection). The physical sealing property of square-cut is inferior to the o-rings. Today the price of o-rings has decreased to the point that the square cut design is nearly obsolete.
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The o-ring is the most widely adapted seal in history because of its simplicity, low cost, ease of installation, and small space requirements without supporting structures. It is suitable for dynamic or static seals within the temperature limits of elastomeric materials, Successful use depends upon proper groove dimensions and selection of the right compound, or from one's prior experience with similar applications.
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In a static axial seal application the squeeze is on both the top and bottom of the O-rings cross section. Static axial seals are typically used in face seal applications. The table below lists recommended dimensions for static axial (external pressure) seal glands by AS-568A O-ring dash numbers.
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High pressure seals produced are excellent heat, oil and chemical resistance for O-rings, seals and gaskets for automotive and energy industries. Good resistance to weathering and ozone. This grade is specially compounded to offer high-pressure extrusion resistance.
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